<template>
	<view class="goods-item" >
		
	  <!-- 商品左侧图片区域 -->
	  <view class="goods-item-left">
		<radio :checked="goods.goods_state" color="#C00000" v-if="showRadio" @click="radioClickHandler"></radio>
	    <image :src="goods.goods_small_logo || defaultPic" class="goods-pic" @click="navigateToDetail(goods)"></image>
	  </view>
	  <!-- 商品右侧信息区域 -->
	  <view class="goods-item-right" @click="navigateToDetail(goods)">
	    <!-- 商品标题 -->
	    <view class="goods-name">{{goods.goods_name }}</view>
	    <view class="goods-info-box">
	      <!-- 商品价格 -->
	      <view class="goods-price">￥{{goods.goods_price | keepTwoDecimals}}</view>
		    <!-- 商品数量 -->
		 <uni-number-box :min="1"  v-if="showNum" :value="goods.goods_count" @change="numChangeHandler"></uni-number-box>
	    </view>
	  </view>
	</view>
</template>

<script>
	export default {
		name:"my-goods",
		data() {
			return {
				
			};
		},
		props:{
			goods:{
				type:Object
			},
		// 是否展示图片左侧的 radio
			showRadio: {
			  type: Boolean,
			  // 如果外界没有指定 show-radio 属性的值，则默认不展示 radio 组件
			  default: false,
			},
		// 是否展示价格右侧的 NumberBox 组件
			showNum: {
			  type: Boolean,
			  default: false,
			},
		},
		filters:{
			keepTwoDecimals(num){
				return (num*1).toFixed(2)
			}
			
		},
		methods:{
			navigateToDetail(item){
				uni.navigateTo({
				url: '/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id
				})
			},
			// radio 组件的点击事件处理函数
			radioClickHandler(){
			// 通过 this.$emit() 触发外界通过 @ 绑定的 radio-change 事件，
				// 同时把商品的 Id 和 勾选状态 作为参数传递给 radio-change 事件处理函数
				// console.log(this.goods);
				this.$emit('radio-change', {
				  // 商品的 Id
				  goods_id: this.goods.goods_id,
				  // 商品最新的勾选状态
				  goods_state: !this.goods.goods_state
				})
			},
			 // NumberBox 组件的 change 事件处理函数
			  numChangeHandler(val) {
				  // e.stopPropagation()
			    // 通过 this.$emit() 触发外界通过 @ 绑定的 num-change 事件
			    this.$emit('num-change', {
			      // 商品的 Id
			      goods_id: this.goods.goods_id,
			      // 商品的最新数量
			      goods_count: +val
			    })
			  }
		}
	}
</script>

<style lang="less">
	.goods-item {
	  display: flex;
	  padding: 10px 5px;
	  border-bottom: 1px solid #f0f0f0;
	
	  .goods-item-left {
		  margin-right: 5px;
		  display: flex;
		  justify-content: space-between;
		  align-items: center;
	
	    .goods-pic {
	      width: 100px;
	      height: 100px;
	      display: block;
	    }
	  }
	
	  .goods-item-right {
	    display: flex;
	    flex-direction: column;
	    justify-content: space-between;
	
	    .goods-name {
	      font-size: 13px;
	    }
	
	    .goods-price {
	      font-size: 16px;
	      color: #c00000;
	    }
		 .goods-info-box {
		    display: flex;
		    align-items: center;
		    justify-content: space-between;
		  }
	  }
	}
</style>